Seiko Cal. 6663 - 405

The Seiko 6663-405 represents an important milestone in Seiko's 1991 lineup. Powered by the 6663 caliber with 33j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-830b3a5deece]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1991

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